Android/iOS: TripIt is an awesome app that scans your email for travel confirmations, then collects all your flight, hotel, and other travel information into one consolidated place. It's a must-have for any traveler, and right now it's on sale for 99¢, down from $3.99.

TripIt already has a free version in both app stores, but it's ad-supported, so if you're a regular TripIt user (which you should be), the ad-free version is definitely worth a buy. If you've been holding off because of the price, now is the perfect time to snatch it up. Note that this isn't to be confused with TripIt Pro, the $50/year addition to the service that adds things like flight alerts and more. This is just for the ad-free version of the app. Hit the links below to grab it while you can.